A survey of the incidence of the repeat breeder cow in Sweden with reference to herd size, season, age, and milk yield.
D000367:Age Factors; D000818:Animals; D005260:Female; D005298:Fertility; D007247:Infertility, Female / Q000662:veterinary*; D008892:Milk; D012098:Reproduction; D012621:Seasons; D013548:Sweden